Put extensions back so we can start converting

lnbits/extensions/lnurlp/models.py

@@ -0,0 +1,55 @@
+import json
+from urllib.parse import urlparse, urlunparse, parse_qs, urlencode, ParseResult
+from quart import url_for
+from typing import NamedTuple, Optional, Dict
+from sqlite3 import Row
+from lnbits.lnurl import encode as lnurl_encode  # type: ignore
+from lnurl.types import LnurlPayMetadata  # type: ignore
+
+
+class PayLink(NamedTuple):
+    id: int
+    wallet: str
+    description: str
+    min: int
+    served_meta: int
+    served_pr: int
+    webhook_url: str
+    success_text: str
+    success_url: str
+    currency: str
+    comment_chars: int
+    max: int
+
+    @classmethod
+    def from_row(cls, row: Row) -> "PayLink":
+        data = dict(row)
+        return cls(**data)
+
+    @property
+    def lnurl(self) -> str:
+        url = url_for("lnurlp.api_lnurl_response", link_id=self.id, _external=True)
+        return lnurl_encode(url)
+
+    @property
+    def lnurlpay_metadata(self) -> LnurlPayMetadata:
+        return LnurlPayMetadata(json.dumps([["text/plain", self.description]]))
+
+    def success_action(self, payment_hash: str) -> Optional[Dict]:
+        if self.success_url:
+            url: ParseResult = urlparse(self.success_url)
+            qs: Dict = parse_qs(url.query)
+            qs["payment_hash"] = payment_hash
+            url = url._replace(query=urlencode(qs, doseq=True))
+            return {
+                "tag": "url",
+                "description": self.success_text or "~",
+                "url": urlunparse(url),
+            }
+        elif self.success_text:
+            return {
+                "tag": "message",
+                "message": self.success_text,
+            }
+        else:
+            return None